[FreeRDP] How to install FreeRDP on Ubuntu

Install some dependent libraries.

1. sudo apt-get install build-essential git-core cmake libssl-dev libx11-dev libxext-dev libxinerama-dev libxcursor-dev libxdamage-dev libxv-dev libxkbfile-dev libasound2-dev libcups2-dev libxml2 libxml2-dev 
2. sudo apt-get install libavutil-dev libavcodec-dev 
3. sudo apt-get install libcunit1-dev libdirectfb-dev xmlto doxygen libxtst-dev 
4. cmake -DCMAKE_BUILD_TYPE=Debug -DWITH_SSE2=ON 
5. Before making Makefile, you should enable CLIENT or SERVER in CMakeList.txt and continue the following steps:
   
6. sudo make clean
7. sudo make
8. sudo make install 
9. sudo ldconfig